Currently, however, it is likely that R134a will also be banned, so that the next round of changes in coolants can be expected in around 2010.
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| 7.2.6 Coolants | |||
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| Originally, all refrigerated containers were operated using the coolants R11 and R12. After the destruction of the ozone layer became an issue and consequently these coolants were banned by the Montreal Protocol, a number of manufacturers switched briefly to R22 as a substitute coolant. However, as this is also being phased out, the two coolants R134a and R404a are now generally used instead. Currently, however, it is likely that R134a will also be banned, so that the next round of changes in coolants can be expected in around 2010. |
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